Fifty-seven percent of voters in the Central Puget Sound area are inclinced to vote for a $33.3 billion roads and transit package that will likely be on the November ballot, according to a new Elway Poll.

The $9.7 billion roads package includes numerous projects in King, Snohomish and Pierce counties like replacing the state Route 520 bridge across Lake Washington and widening Interstate 405 on the Eastside. It will be combined with a $23.6 billion proposal to expand the Sound Transit light rail system.

If approved, the overall package will increase sales taxes by an estimated $150 annually for a typical family and will increase yearly car-license fees by $80 per $10,000 of vehicle value.

Politicians and transportation planners have been quietly worrying that the roads and transit package may be doomed. Elway’s latest poll of 400 voters last week suggests there’s some hope. The survey, which has a margin of error of 5 percent, did reveal that only 38 percent of those questioned had heard of the tax plan. That’s not surprising because interest groups, both pro and con, haven’t started their ad blitz yet.

Pollster Stuart Elway said of the transpo package:

Simply put, voters will take action to effect a solution which they deem viable, aimed at a problem which they think is important…The Road and Transit proposal attempts to resolve the age-old Roads versus Transit debate by chaining two packages together like Sidney Poitier andd Tony Curtis in “The Defiant Ones.” (OK, you have to be a certain age.) They both make it or neither does…There is still plenty of time for opponents to make their case and support to erode. The Achilles heel may be in the finding the more familiar respondents were with the proposal the less likely they were to support it. And those most likely to vote were least likely to support it. But this initial sounding of public oopinion about the proposal is probably more positive than anyone expected.